| McVac Environmental Services, Inc. NJ | Administrative & Waste Services | 0 | — | A |
| McVan Inc MA | Wholesale Trade | 0 | — | A |
| McVantage Packaging AL | Manufacturing | 0 | — | B |
| McVantage Packaging TN | Manufacturing | 0 | — | B |
| McVay Brothers Contractors, Inc. / Coeur d'Alene Window Company AZ | — | 0 | — | — |
| McVeigh Global Meeting and Events, LLC NY | — | 0 | — | — |
| MCW Staff/Faculty-MCW-IOH WI | Healthcare & Social Assistance | 0 | — | C |
| McWane NJ | Manufacturing | 0 | — | F |
| McWane OH | Manufacturing | 0 | — | F |
| MCWANE CAST IRON PIPE COMPANY AL | — | 0 | — | — |
| McWane Ductile OH | Manufacturing | 0 | — | F |
| McWane Ductile Utah UT | Manufacturing | 0 | — | F |
| McWane Ductile-NJ NJ | Manufacturing | 0 | — | D |
| McWane Inc NY | Manufacturing | 0 | — | F |
| McWane Inc. CA | Manufacturing | 0 | — | F |
| McWane Inc. TN | Manufacturing | 0 | — | F |
| McWane Plant & Industrial AL | Manufacturing | 0 | — | A |
| McWane Plant & Industrial CA | Manufacturing | 0 | — | F |
| McWane Plant & Industrial TX | Manufacturing | 0 | — | A |
| McWane Science Center AL | Arts & Entertainment | 0 | — | B |
| McWane, Inc - MDU UT | Manufacturing | 0 | — | F |
| McWane, Inc. AL | Manufacturing | 0 | — | C |
| McWane, Inc. IL | Manufacturing | 0 | — | F |
| McWane, Inc. TX | Manufacturing | 0 | — | F |
| McWane, Inc. dba Anaco CA | — | 0 | — | — |
| MCWILLIAMS AND SON, INC. FL | Construction | 0 | — | F |
| McWilliams Electric Company Inc. IL | Construction | 0 | — | F |
| McWoods Distribution CA | Wholesale Trade | 0 | — | A |
| MD & Associates, LLP TX | Professional & Technical Services | 3 | $65,714 | — |
| MD & CD INC. CA | Retail Trade | 0 | — | A |
| MD Anderson Cancer Center TX | Accommodation & Food Services | 0 | — | A |
| MD Anderson Cancer Center- Virginia Harris Cockrell Center TX | — | 0 | — | — |
| MD Anderson Cancer Center-Michale E. Keeling Center TX | — | 0 | — | — |
| MD Basciani & Sons, Inc. PA | Agriculture & Forestry | 0 | — | F |
| MD Builders CA | Construction | 0 | — | F |
| MD Carts, LLC TN | Manufacturing | 0 | — | F |
| MD CLINICS LA | Healthcare & Social Assistance | 0 | — | A |
| MD CONTRACTING INC MI | Construction | 0 | — | F |
| MD Drilling & Blasting MA | Construction | 0 | — | F |
| MD Electric of Ohio, LLC OH | Construction | 0 | — | A |
| MD Electronics Corporation NY | — | 0 | — | — |
| MD Health RX Solutions, LLC FL | Manufacturing | 0 | — | A |
| MD Helicopters LLC AZ | Manufacturing | 0 | — | B |
| MD Logistics IN | Transportation & Warehousing | 0 | — | A |
| MD Logistics NC | Transportation & Warehousing | 0 | — | A |
| MD Logistics NV | Transportation & Warehousing | 0 | — | A |
| MD Metals Inc. IL | Manufacturing | 0 | — | F |
| MD Miller Co T/A The Marksmen Co. MD | Construction | 0 | — | F |
| MD OMG EMP, LLC OH | Healthcare & Social Assistance | 2 | $86,923 | — |
| MD Orthopaedics, Inc. IA | Manufacturing | 0 | — | F |
